Biodiversidade, população e economia: uma região de mata atlântica [Biodiversity, Population, and Economy: a region of atlantic forest]

Minas Gerais; Rio Doce; mata atlântica; atlantic forest; sustainable development; conservation; regional development; environment

Land use interpretation for cellular automata models with socioeconomic heterogeneity

Cellular automata models for simulation of urban development usually lack the social heterogeneity that is typical of urban environments. In order to handle this shortcoming, this paper proposes the use of supervised clustering analysis to provide socioeconomic intra-urban land use classification at different levels to be applied to cellular automata models. An empirical test in a highly diverse context in the Greater Metropolitan Area of Belo Horizonte (RMBH) in Brazil is provided. The results show that a reliable division into different socioeconomic land-use classes at large scale enable detailed urban dynamic analysis. Furthermore, the results also allow the quantification of the proportion of urban space occupation for different levels of income; (2) and their pattern in relation to the city centre

ÁREAS PROTEGIDAS E AMBIENTES URBANOS: NOVOS SIGNIFICADOS E TRANSFORMAÇÕES ASSOCIADOS AO FENÔMENO DA URBANIZAÇÃO EXTENSIVA

This paper proposes to discuss the relationship between actions of nature protection and urban environments, with attention to the influences of the phenomenon of extensive urbanization in the dynamics of territories permeated by protected areas. It is postulated that this interrelationship not only refers to the origin of the movement to create spaces for nature conservation, but also interferes in its constitution, especially in countries like Brazil, where many of these areas were implanted near urban centers. Faced with the new socio-spatial and organizational configurations observed in the metropolis in recent decades, we call attention to the phenomenon of extensive urbanization, a term proposed by Monte-Mór to interpret the movement of extension conditions and urban ways of life beyond the limits of the metropolis. The unifying character of this movement and the pressures on the border has been responsible for reframing the rural-urban relationship, broadly, with direct repercussions on territorial dynamics of protected areas located in the coverage of metropolitan centers. As a result, there is a complexity of the senses and meanings attributed to protected areas and the appearance of several challenges to the purposes of biodiversity conservation and promotion of territorial development